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Dessert

Grape Fruit and Orange Jelly

A jelly made from grape fruit and orange, sweetened with sugar.

From an old cookbook · modernised transcription
From a historical cookbook (Internet Archive) · 5 ingredients
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Why it works: Orange and lemon match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 10,634 recipes. Both carry 3-hexenal, which smells apple, fruity. The science ↓

Grape Fruit and Orange Jelly

Ingredients

Directions

Prepare the fruit

  1. Wash and dry the fruit.

  2. Grate off only the yellow rind.

  3. Remove the white skin.

  4. Cut the remaining fruit into small pieces.

Cook and strain

  1. Put the fruit into a saucepan with the water.

  2. Boil for 1 hour, stirring frequently.

  3. Strain through a fine sieve or muslin.

  4. Leave to drip.

Make the jelly

  1. Measure the juice into a clean pan.

  2. Add the grated rind.

  3. Add 1 lb sugar for each pint of liquid.

  4. Boil until it reaches a jelly consistency.

  5. Skim the jelly.

  6. Pour into pots.

  7. Cover when cold.

Recipe from a historical cookbook (Internet Archive).

Transcribed from a scanned cookbook and modernised for today's kitchens. Where the book gave no heat or time, or said "a moderate oven", the temperatures and times here may be modern equivalents rather than the book's own figures.

Explore the science

The flavor team

The pairs that carry this dish. Each one is judged two ways: how much their aromas overlap, and how often cooks already put them together.

  1. Orange + lemontop 1% of all pairs
    Smell alikestrong
    Cooked together10,634 recipes

    Shared aroma: 3-hexenal (apple, fruity).

  2. Grape + orangetop 6% of all pairs
    Smell alikemoderate
    Cooked together1,771 recipes

    Shared aroma: 3-hexenal (apple, fruity).

  3. Grape + lemontop 14% of all pairs
    Smell alikemoderate
    Cooked together2,412 recipes

    Shared aroma: 3-hexenal (apple, fruity).

  4. Lemon + sugartop 18% of all pairs
    Smell alikelow
    Cooked together53,532 recipes

    Shared aroma: 2-nonenal (fatty, green).

  5. Orange + sugartop 20% of all pairs
    Smell alikelow
    Cooked together19,212 recipes

    Shared aroma: beta-damascenone (apple, rose).

Lemon and sugar barely smell alike, yet cooks put them together in 53,532 recipes: they work on texture and structure more than aroma.

Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs

What each ingredient does

Grapefruit (in the method)
Supplies the main bitter-sweet fruit flavour and natural pectin that helps the jelly set.
Sweet oranges
Add sweetness, fruit flavour and more natural pectin to the juice.
Lemons
Add acidity that balances the sugar and supports setting.
Sugar
Adds sweetness and, once boiled, helps the jelly set firm.

The step that matters

Boiling to a jelly consistency. Sugar, acid and pectin set into a gel only at the right concentration. Boiling too briefly leaves the jelly runny, while overboiling can make it stiff and dull in flavour, so test for setting before potting.

Swap the grape

How well each one fits the dish's main ingredients (orange, lemon, sugar):

  1. Limefits better
  2. Vanillafits better
  3. Blueberryfits better
  4. Grapethe original

Fit is the average pairing score against orange, lemon, sugar. Candidates are from the same food group and used in at least 100 recipes.

“What each ingredient does” and “The step that matters” were written by Claude from this recipe’s own method and reviewed in samples by CompKitchen.

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